<template>
  <div>
    <!--面包屑导航区域-->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>用户管理</el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>

    <!--卡片视图区域-->
    <el-card class="box-card">
      <!--搜索与添加区域-->
      <el-row :gutter="20">
        <el-col :span="7">
          <el-input placeholder="请输入内容"
                    v-model="queryInfo.query"
                    clearable
                    @clear="getUserList">
            <el-button slot="append" icon="el-icon-search" @click="getUserList"/>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary" @click="addDialogVisible = true">添加用户</el-button>
        </el-col>
      </el-row>
      <!--用户列表区域-->
      <el-table :data="userlist" border stripe>
        <el-table-column type="index" label="序号"></el-table-column>
        <el-table-column label="姓名" prop="username"></el-table-column>
        <el-table-column label="邮箱" prop="email"></el-table-column>
        <el-table-column label="电话" prop="mobile"></el-table-column>
        <el-table-column label="角色" prop="role_name"></el-table-column>
        <el-table-column label="状态">
          <template slot-scope="scope">
            <el-switch v-model="scope.row.mg_state" @change="userStateChanged(scope.row)">
            </el-switch>
          </template>
        </el-table-column>
        <el-table-column label="操作" width="180px">
          <template slot-scope="scope">
            <!--修改按钮-->
            <el-button type="primary" icon="el-icon-edit" size="mini" @click="showEditDialog(scope.row.id)"/>
            <!--删除按钮-->
            <el-button type="danger" icon="el-icon-delete" size="mini" @click="removeUserById(scope.row.id)"/>
            <!--分配角色按钮-->
            <el-tooltip effect="dark" content="分配角色" placement="top" :enterable="false">
              <el-button type="warning" icon="el-icon-setting" size="mini" @click="setRole(scope.row)"/>
            </el-tooltip>
          </template>
        </el-table-column>
      </el-table>
      <!--分页区域-->
      <el-pagination @size-change="handleSizeChange"
      @current-change="handleCurrentChange"
      :current-page="queryInfo.pagenum"
      :page-sizes="[1, 2, 5, 10]"
      :page-size="queryInfo.pagesize"
      layout="total, sizes, prev, pager, next, jumper"
      :total="total">
      </el-pagination>
    </el-card>

    <!--添加用户对话框-->
    <el-dialog title="提示" :visible.sync="addDialogVisible"
    width="50%" @close="addDialogClosed">
      <!--内容主体区域-->
      <el-form :model="addForm" :rules="addFormRules"
      ref="addFormRef" label-width="70px">
        <el-form-item label="用户名" prop="username">
          <el-input v-model="addForm.username"></el-input>
        </el-form-item>
        <el-form-item label="密码" prop="password">
          <el-input v-model="addForm.password"></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="addForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机号" prop="mobile">
          <el-input v-model="addForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <!--底部区域-->
      <span slot="footer" class="dialog-footer">
        <el-button @click="addDialogVisible = false">取消</el-button>
        <el-button type="primary" @click="addUser">确定</el-button>
      </span>
    </el-dialog>

    <!--修改用户的对话框-->
    <el-dialog title="提示" :visible.sync="editDialogVisible"
               width="50%" @close="editDialogClosed">
      <!--内容主体区域-->
      <el-form :model="editForm" :rules="editFormRules"
               ref="editFormRef" label-width="70px">
        <el-form-item label="用户名">
          <el-input v-model="editForm.username" disabled></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="editForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机号" prop="mobile">
          <el-input v-model="editForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <!--底部区域-->
      <span slot="footer" class="dialog-footer">
        <el-button @click="editDialogVisible = false">取消</el-button>
        <el-button type="primary" @click="editUser">确定</el-button>
      </span>
    </el-dialog>

    <!--分配角色对话框-->
    <el-dialog title="分配角色"
               :visible.sync="setRoleDialogVisible"
               width="50%"
               @close="setRoleDialogClosed">
      <div>
        <p>当前的用户: {{userInfo.username}}</p>
        <p>当前的角色: {{userInfo.role_name}}</p>
        <p>分配新角色:
          <el-select v-model="selectedRoleId"
          placeholder="请选择">
            <el-option v-for="item in roleList"
            :key="item.id"
            :label="item.roleName"
            :value="item.id"></el-option>
          </el-select>
        </p>
      </div>
      <span slot="footer">
        <el-button @click="setRoleDialogVisible = false">取消</el-button>
        <el-button type="primary" @click="saveRoleInfo">确定</el-button>
      </span>
    </el-dialog>
  </div>
</template>

<script>
export default {
  name: "Users",
  data() {
    // 验证邮箱规则
    var checkEmail = (rule, value, cb) => {
      const regEmail = /\w+([-+.]\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*/
      if (regEmail.test(value)){
        return cb()
      }
      cb(new Error('请输入合法的邮箱'))
    }
    // 验证手机号规则
    var checkMobile = (rule, value, cb) => {
      const regMobile = /^(0|86|17951)?(13[0-9]|15[012356789]|166|17[3678]|18[0-9]|14[57])[0-9]{8}$/
      if (regMobile.test(value)){
        return cb()
      }
      cb(new Error('请输入合法的手机号'))
    }
    return {
      // 获取用户列表的参数对象
      queryInfo: {
        query: '',
        pagenum: 1,
        pagesize: 2
      },
      userlist: [],
      total: 0,
      addDialogVisible: false, //控制添加用户对话框的显示与隐藏
      addForm: {
        username: '',
        password: '',
        email: '',
        mobile: ''
      }, //添加用户表单
      addFormRules: {
        username: [
          { required: true, message: '请输入用户名', trigger: "blur" },
          { min: 3, max: 10, message: "长度在 3 到 10 个字符", trigger: "blur"}
        ],
        password: [
          { required: true, message: '请输入登录密码', trigger: "blur" },
          { min: 6, max: 15, message: "长度在 6 到 15 个字符", trigger: "blur"}
        ],
        email: [
          { required: true, message: '请输入邮箱', trigger: "blur" },
          {validator: checkEmail, trigger: 'blur'}
        ],
        mobile: [
          { required: true, message: '请输入手机号', trigger: "blur" },
          {validator: checkMobile, trigger: 'blur'}
        ],
      },
      editDialogVisible: false, // 控制修改用户对话框显示与隐藏
      editForm: {}, //查询到的用户信息
      editFormRules: {
        email: [
          { required: true, message: '请输入邮箱', trigger: "blur" },
          {validator: checkEmail, trigger: 'blur'}
        ],
        mobile: [
          { required: true, message: '请输入手机号', trigger: "blur" },
          {validator: checkMobile, trigger: 'blur'}
        ]
      },
      // 控制分配角色对话框的显示与隐藏
      setRoleDialogVisible: false,
      // 需要被分配角色的用户信息
      userInfo: {},
      // 所有角色的数据列表
      roleList: [],
      // 已选中的角色Id值
      selectedRoleId: ''
    }
  },
  created() {
    this.getUserList()
  },
  methods: {
    async getUserList() {
     const {data: res} = await this.$http.get('users', {
        params: this.queryInfo
      })
      if (res.meta.status !== 200) {
        return this.$message.error('获取用户列表失败! ')
      }
      this.userlist = res.data.users
      this.total = res.data.total
      //console.log(res)
    },
    // 监听 pagesize 改变的事件
    handleSizeChange(newSize) {
      this.queryInfo.pagesize = newSize
      this.getUserList()
    },
    // 监听 页码值 改变的事件
    handleCurrentChange(newPage){
      this.queryInfo.pagenum = newPage
      this.getUserList()
    },
    // 监听switch开关状态
    async userStateChanged(userinfo){
     const  {data: res} = await this.$http.put(`users/${userinfo.id}/state/${userinfo.mg_state}`)
      if (res.meta.status !== 200) {
        userinfo.mg_state = !userinfo.mg_state
        return this.$message.error('更新用户状态失败! ')
      }
      this.$message.success('更新用户状态成功! ')
    },
    // 监听用户对话框关闭事件
    addDialogClosed(){
      this.$refs.addFormRef.resetFields()
    },
    // 提交表单, 添加新用户
    addUser(){
      this.$refs.addFormRef.validate( async valid => {
        if (!valid) return
        // 可以发起网络请求
        const {data: res} = await this.$http.post('users',this.addForm)

        if (res.meta.status !== 201) {
          this.$message.error('添加用户失败!')
        }

        this.$message.success('添加用户成功!')
        // 隐藏添加用户的对话框
        this.addDialogVisible = false
        // 重新获取用户列表
        this.getUserList()
      })
    },
    // 展示编辑用户的对话框
    async showEditDialog(id) {
      // 解构赋值 const {data: res}
      const {data: res} = await this.$http.get('users/' + id)

      if (res.meta.status !== 200) {
        return this.$message.error('查询用户信息失败! ')
      }

      this.editForm = res.data
      this.editDialogVisible = true
    },
    // 监听修改用户对话框关闭事件
    editDialogClosed() {
      this.$refs.editFormRef.resetFields()
    },
    // 修改用户信息提交
    editUser() {
      this.$refs.editFormRef.validate( async valid => {
        if (!valid) return
        // 可以发起网络请求
        const {data: res} = await this.$http.put('users/' +
            this.editForm.id,{
              email: this.editForm.email,
              mobile: this.editForm.mobile
            })

            if (res.meta.status !== 200) {
              this.$message.error('更新用户信息失败!')
            }

            this.$message.success('更新用户信息成功!')
            // 隐藏添加用户的对话框
            this.editDialogVisible = false
            // 重新获取用户列表
            this.getUserList()
      })
    },
    // 根据id删除用户
    async removeUserById(id){
      // 弹框询问用户
      const confirmResult = await this.$confirm('此操作将永久删除该用户信息, 是否继续?',
          '提示',
          {
             confirmButtonText: '确定',
             cancelButtonText: '取消',
             type: 'warning'
         }
      ).catch(err => err)
      //console.log(confirmResult)

      if (confirmResult !== 'confirm'){
        return this.$message.info('已取消删除')
      }

      const {data: res} = await this.$http.delete('users/' + id)

      if (res.meta.status !== 200) {
        this.$message.error('删除用户信息失败!')
      }

      this.$message.success('删除用户信息成功!')
      // 重新获取用户列表
      this.getUserList()
    },
    // 展示分配角色的对话框
    async setRole(userInfo){
      this.userInfo = userInfo
      // 展示对话框之前, 获取所有角色的列表
      const {data: res} = await this.$http.get('roles')

      if (res.meta.status !== 200) {
        return this.$message.error('获取角色列表失败! ')
      }

      this.roleList = res.data
      this.setRoleDialogVisible = true
    },
    // 点击按钮, 分配角色
    async saveRoleInfo() {
      if (!this.selectedRoleId) {
        return this.$message.error('请选择要分配的角色! ')
      }

      const {data: res} = await this.$http.put(`users/${this.userInfo.id}/role`,
          {
            rid: this.selectedRoleId
          })

      console.log(res)
      if (res.meta.status !== 200) {
        return this.$message.error(res.meta.msg)
      }

      this.$message.success(res.meta.msg)
      this.getUserList()
      this.setRoleDialogVisible = false
    },
    // 监听分配角色对话框的关闭
    setRoleDialogClosed() {
      this.selectedRoleId = ''
      this.userInfo = {}
    }
  }
}
</script>

<style scoped lang="less">
</style>